(CNN) -- A missile strike killed two people Friday in northwest Pakistan, the latest in a string of suspected U.S. drone attacks on the region, a Pakistani intelligence official said.

A guided missile was fired at a car carrying militants at 8:50 a.m. local time in the village of Naurak, about 15 kilometers (9.3 miles) east of Miran Shah in North Waziristan, according to an official from the political administration and an intelligence official.

Three other people were injured in the attack. It was not immediately clear whether those killed and injured were militants.

The attack comes after another missile strike late Thursday in North Waziristan on a house believed to be housing Islamic militants, killing three and wounding two, a Pakistani intelligence official told CNN.

The largely autonomous tribal region is near the rugged border with Afghanistan. The border area has been the scene of heavy fighting between Pakistani forces and the Taliban, the Islamic militia that also is battling U.S. forces in Afghanistan.

The U.S. military routinely offers no comment on reported drone attacks. However, it is the only country operating in the region known to have the ability to launch missiles from remote-controlled aircraft.